Effects of drought on photoprotective mechanisms in European beech (Fagus sylvatica L.) seedlings from different provenances

Garcı́a-Plazaola, José Ignacio; Becerril, José M.

doi:10.1007/s004680000068

Cited by 101 publications

(68 citation statements)

References 20 publications

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“…This classification of oak in relation to beech is consistent with other studies that have documented the higher physiological performance of oak under conditions of water shortage [52,99]. The root-to-shoot ratios measured in this study were in accordance with values determined for F. sylvatica [100], but slightly higher for Q. petraea than in other studies [101].…”

Section: How Resistant To Drought Are Seedlings Of the Minor Tree Spesupporting

confidence: 82%

Effects of Drought and Rewetting on Growth and Gas Exchange of Minor European Broadleaved Tree Species

Kunz

Räder

Bauhus

2016

Forests

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Widespread and economically important European tree species such as Norway spruce, Scots pine, and European beech are projected to be negatively affected by the increasing intensity and frequency of dry and hot conditions in a future climate. Hence, there is an increasing need to investigate the suitability of presumably more drought tolerant species to ensure future ecological stability, biodiversity, and productivity of forests. Based on their distribution patterns and climatic envelopes, the rare, minor broadleaved tree species Sorbus torminalis ((L.) C RANTZ ), S. domestica (L.), Acer campestre (L.), and A. platanoides (L.) are assumed to be drought tolerant, however, there is only limited experimental basis to support that notion. This study aimed at quantifying growth and gas exchange of seedlings of these species during drought conditions, and their capacity to recover following drought. For that purpose, they were compared to the common companion species Quercus petraea ((M ATTUSCHKA ) L IEBL .) and Fagus sylvatica (L.). Here, potted seedlings of these species were exposed to water limitation followed by rewetting cycles in a greenhouse experiment. Photosynthesis and transpiration rates, stomatal conductance as well as root and shoot growth rates indicated a high drought resistance of A. campestre and A. platanoides. Sorbus domestica showed a marked ability to recover after drought stress. Therefore, we conclude that these minor tree species have the potential to enrich forests on drought-prone sites. Results from this pot experiment need to be complemented by field studies, in which the drought response of the species is not influenced by restrictions to root development.

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Section: How Resistant To Drought Are Seedlings Of the Minor Tree Spesupporting

confidence: 82%

Effects of Drought and Rewetting on Growth and Gas Exchange of Minor European Broadleaved Tree Species

Kunz

Räder

Bauhus

2016

Forests

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“…This would be detected on the next morning only if stresses were strong enough and/or repair capacity during the night was weak (Verhoeven et al 1999;Adams et al 2001Adams et al , 2004Llorens et al 2003;Zarter et al 2006). Reports have indicated that, in low temperature (Ottander et al 1995;Verhoeven et al 1996;Barker et al 2002) or water stress (Demmig et al 1988;García-Plazaola and Becerril 2000), retained zeaxanthin ? antheraxanthin always accompanied a low F v /F m .…”

Section: Resultsmentioning

confidence: 93%

Relationships of photosynthetic capacity to PSII efficiency and to photochemical reflectance index of Pinus taiwanensis through different seasons at high and low elevations of sub-tropical Taiwan

Weng

Lai

Liao

et al. 2008

Trees

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We investigated the relationships of photosynthetic capacity (P (nsat), near light-saturated net photosynthetic rate measured at 1,200 mu mol m(-2) s(-1) PPFD) to photosystem II efficiency (F (v)/F (m)) and to photochemical reflectance index [PRI = (R (531) - R (570))/(R (531) + R (570))] of Pinus taiwanensis Hay. needles at high (2,600 m a.s.l) and low-elevation (800 m a.s.l) sites through different seasons. Results indicate that at high-elevation site, P (nsat), F (v)/F (m) and PRI (both measured at predawn) paralleled in general with the air temperature. On the coolest measuring day with the minimum air temperature dropping to -2A degrees C, P (nsat) could decrease to ca. 15% of its highest value, which was measured in autumn. At low-elevation site, with the minimum air temperature of 10-12A degrees C in cooler season and almost no seasonal variation of F (v)/F (m), P (nsat) dropped to ca. 65% of its highest value and PRI decreased ca. 0.02 in winter. Even though seasonal variation of P (nsat) was affected by many factors, it was still closely related to PRI based on statistical analyses using data from both sites, through different seasons. On the contrary, seasonal variation of F (v)/F (m) of P. taiwanensis needles was influenced mainly by low temperature at high elevation. Therefore, the correlation of P (nsat) - F (v)/F (m) was lower than that of P (nsat) - PRI when data combined from both high- and low-elevation sites were analyzed. It is concluded that predawn PRI could be used as an indicator to estimate the seasonal potential of photosynthetic capacity of P. taiwanensis grown at low- and high-elevations of sub-tropical Taiwan

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“…Several observations support this state, e.g., α-tocopherol increases remarkably by water deficit in spinach and pea leaves (Tanaka et al, 1990;Moran et al, 1994), in wheat (Bartoli et al, 1999), in Mediterranean shrubs such as rosemary and lavender (Munne-Bosch et al, 1999;Munne-Bosch et al, 2001), and in European beech seedlings (Garcia-Plazaola and Becerril, 2000). However an interesting observation can be also taken; the changes in α-tocopherol level during plant responses to environmental stress are characterized by two phases.…”

Section: -2-2-tocopherols (Vitamin E)mentioning

confidence: 85%

Antioxidative responses to drought and salinity stress in plants, a comprehensive review

Saeidnejad¹,

Rajaei²

2015

Int J Life Sci

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Article InformationEnvironmental stresses are one of the most important reducing factor for plant's growth and productivity worldwide. Among them, salinity and drought are known as the most harmful. Reactive oxygen species (ROS) production is a frequent consequence of most stresses, including salinity and drought. These free radicals cause serious damages to plant's structure by oxidizing membrane lipids, proteins and nucleic acids. During the evolution process, plants acquire an antioxidative system consisting of nonenzymatic antioxidants, such as β-carotenes, ascorbic acid (AA), α-tocopherol (α-toc), and antioxidant enzymes, such as catalase (CAT), superoxide dismutase (SOD), and peroxidase (POX). Considering the fact that ROS production is an outcome of plant metabolism, controlling the ROS levels is highly vital for plant cells survive. There are considerable numbers of scientific researches regards to the antioxidative responses of plants grown under drought and salinity. These responses highly depend on plant species, other environmental conditions, growth stage and other factors. In this review, the biochemistry of enzymatic and non-enzymatic antioxidants and plant's antioxidative system changes in response to drought and salinity were expansively evaluated.

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Effects of drought on photoprotective mechanisms in European beech (Fagus sylvatica L.) seedlings from different provenances

Cited by 101 publications

References 20 publications

Effects of Drought and Rewetting on Growth and Gas Exchange of Minor European Broadleaved Tree Species

Effects of Drought and Rewetting on Growth and Gas Exchange of Minor European Broadleaved Tree Species

Relationships of photosynthetic capacity to PSII efficiency and to photochemical reflectance index of Pinus taiwanensis through different seasons at high and low elevations of sub-tropical Taiwan

Antioxidative responses to drought and salinity stress in plants, a comprehensive review

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